Recently Reddit user /u/Documental38 discovered that on the Rock Band 4 Amazon page there were some very positive reviews. That may not sound like a big deal, but it just so happens that those positive reviews came from people who work for the Rock Band's developer, 'Harmonix'!
In an interview with Destructoid, Harmonix has this to say:
Harmonix has clarified its internal policy about posting reviews of our own products on retail sites, and we've asked that existing reviews be edited to identify Harmonix employees or be removed entirely.
They also said that it wasn't meant to deceive people, but it was still inappropriate.
While we believe the reviews posted by a few employees were sincere and without ill intentions, as a studio we don't believe these are appropriate actions. We appreciate the feedback from the community, and take our relationship with our fans seriously.
If you'd like to read these reviews yourself take a look.